Double Pitch roller chains are created in accordance with the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain specifications. Normally these chains are similar to ASME/ANSI standard items 
except that the pitch is double. They are obtainable in Transmission Series, Conveyor Series with Normal (small) Rollers and Conveyor Series with Big (oversized) Rollers.
Transmission Series
This series is usually applied on drives with slow to moderate speeds, minimal chain loads and extended center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by adding 2000 on the ASME/ANSI chain number along with the prefi x letter ?¡ãA?¡À. Note that some companies don’t use a prefi x letter for this series so the chains may be represented as A2040, A2050 and so on. or 2040, 2050 etc.
Conveyor Series with Common (little) Rollers
This series is often utilised on light to reasonable load materials handling conveyors with or without having attachment hyperlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and greater have ?¡ãHeavy?¡À series link plates (i.e. link plates on the following bigger chain size. The chain variety is uncovered by incorporating 2000 towards the ASME/ANSI chain number and also the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À kind side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess large rollers to ensure that the chain rolls on the conveyor track reducing friction. Chain numbers are found inside the exact same way as noted above except the last digit to the chain amount is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the large roller.
Sprockets
Normally sprockets needs to be produced specially for these chains according on the ASME/ANSI B29.3 and B29.4 standards however, for Transmission Series and Conveyor Series with Common (smaller) Rollers, ASME/ANSI B29.one Common roller chain sprockets may perhaps be utilised presented the number of teeth is thirty or much more.
